-/* $Id: html.c,v 1.255 2019/04/30 15:53:00 schwarze Exp $ */
+/* $Id: html.c,v 1.261 2019/09/05 13:35:04 schwarze Exp $ */
/*
* Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
* Copyright (c) 2011-2015, 2017-2019 Ingo Schwarze <schwarze@openbsd.org>
struct htmldata {
const char *name;
int flags;
-#define HTML_NOSTACK (1 << 0)
-#define HTML_AUTOCLOSE (1 << 1)
-#define HTML_NLBEFORE (1 << 2)
-#define HTML_NLBEGIN (1 << 3)
-#define HTML_NLEND (1 << 4)
-#define HTML_NLAFTER (1 << 5)
+#define HTML_INPHRASE (1 << 0) /* Can appear in phrasing context. */
+#define HTML_TOPHRASE (1 << 1) /* Establishes phrasing context. */
+#define HTML_NOSTACK (1 << 2) /* Does not have an end tag. */
+#define HTML_NLBEFORE (1 << 3) /* Output line break before opening. */
+#define HTML_NLBEGIN (1 << 4) /* Output line break after opening. */
+#define HTML_NLEND (1 << 5) /* Output line break before closing. */
+#define HTML_NLAFTER (1 << 6) /* Output line break after closing. */
#define HTML_NLAROUND (HTML_NLBEFORE | HTML_NLAFTER)
#define HTML_NLINSIDE (HTML_NLBEGIN | HTML_NLEND)
#define HTML_NLALL (HTML_NLAROUND | HTML_NLINSIDE)
-#define HTML_INDENT (1 << 6)
-#define HTML_NOINDENT (1 << 7)
+#define HTML_INDENT (1 << 7) /* Indent content by two spaces. */
+#define HTML_NOINDENT (1 << 8) /* Exception: never indent content. */
};
static const struct htmldata htmltags[TAG_MAX] = {
{"html", HTML_NLALL},
{"head", HTML_NLALL | HTML_INDENT},
- {"body", HTML_NLALL},
- {"meta", HTML_NOSTACK | HTML_AUTOCLOSE | HTML_NLALL},
+ {"meta", HTML_NOSTACK | HTML_NLALL},
+ {"link", HTML_NOSTACK | HTML_NLALL},
+ {"style", HTML_NLALL | HTML_INDENT},
{"title", HTML_NLAROUND},
+ {"body", HTML_NLALL},
{"div", HTML_NLAROUND},
- {"div", 0},
{"section", HTML_NLALL},
- {"h1", HTML_NLAROUND},
- {"h2", HTML_NLAROUND},
- {"span", 0},
- {"link", HTML_NOSTACK | HTML_AUTOCLOSE | HTML_NLALL},
- {"br", HTML_NOSTACK | HTML_AUTOCLOSE | HTML_NLALL},
- {"a", 0},
{"table", HTML_NLALL | HTML_INDENT},
{"tr", HTML_NLALL | HTML_INDENT},
{"td", HTML_NLAROUND},
{"dl", HTML_NLALL | HTML_INDENT},
{"dt", HTML_NLAROUND},
{"dd", HTML_NLAROUND | HTML_INDENT},
- {"p", HTML_NLAROUND | HTML_INDENT},
- {"pre", HTML_NLALL | HTML_NOINDENT},
- {"var", 0},
- {"cite", 0},
- {"b", 0},
- {"i", 0},
- {"code", 0},
- {"small", 0},
- {"style", HTML_NLALL | HTML_INDENT},
- {"math", HTML_NLALL | HTML_INDENT},
+ {"h1", HTML_TOPHRASE | HTML_NLAROUND},
+ {"h2", HTML_TOPHRASE | HTML_NLAROUND},
+ {"p", HTML_TOPHRASE | HTML_NLAROUND | HTML_INDENT},
+ {"pre", HTML_TOPHRASE | HTML_NLALL | HTML_NOINDENT},
+ {"a", HTML_INPHRASE | HTML_TOPHRASE},
+ {"b", HTML_INPHRASE | HTML_TOPHRASE},
+ {"cite", HTML_INPHRASE | HTML_TOPHRASE},
+ {"code", HTML_INPHRASE | HTML_TOPHRASE},
+ {"i", HTML_INPHRASE | HTML_TOPHRASE},
+ {"small", HTML_INPHRASE | HTML_TOPHRASE},
+ {"span", HTML_INPHRASE | HTML_TOPHRASE},
+ {"var", HTML_INPHRASE | HTML_TOPHRASE},
+ {"br", HTML_INPHRASE | HTML_NOSTACK | HTML_NLALL},
+ {"math", HTML_INPHRASE | HTML_NLALL | HTML_INDENT},
{"mrow", 0},
{"mi", 0},
{"mn", 0},
print_endline(h);
print_text(h, "td.head-vol { text-align: center; }");
print_endline(h);
- print_text(h, "div.Pp { margin: 1ex 0ex; }");
- print_endline(h);
- print_text(h, "div.Nd, div.Bf, div.Op { display: inline; }");
+ print_text(h, ".Nd, .Bf, .Op { display: inline; }");
print_endline(h);
- print_text(h, "span.Pa, span.Ad { font-style: italic; }");
+ print_text(h, ".Pa, .Ad { font-style: italic; }");
print_endline(h);
- print_text(h, "span.Ms { font-weight: bold; }");
+ print_text(h, ".Ms { font-weight: bold; }");
print_endline(h);
- print_text(h, "dl.Bl-diag ");
+ print_text(h, ".Bl-diag ");
print_byte(h, '>');
print_text(h, " dt { font-weight: bold; }");
print_endline(h);
- print_text(h, "code.Nm, code.Fl, code.Cm, code.Ic, "
- "code.In, code.Fd, code.Fn,");
- print_endline(h);
- print_text(h, "code.Cd { font-weight: bold; "
- "font-family: inherit; }");
+ print_text(h, "code.Nm, .Fl, .Cm, .Ic, code.In, .Fd, .Fn, .Cd "
+ "{ font-weight: bold; font-family: inherit; }");
print_tagq(h, t);
}
void
html_close_paragraph(struct html *h)
{
- struct tag *t;
+ struct tag *this, *next;
+ int flags;
- for (t = h->tag; t != NULL && t->closed == 0; t = t->next) {
- switch(t->tag) {
- case TAG_P:
- case TAG_PRE:
- print_tagq(h, t);
+ this = h->tag;
+ for (;;) {
+ next = this->next;
+ flags = htmltags[this->tag].flags;
+ if (flags & (HTML_INPHRASE | HTML_TOPHRASE))
+ print_ctag(h, this);
+ if ((flags & HTML_INPHRASE) == 0)
break;
- case TAG_A:
- print_tagq(h, t);
- continue;
- default:
- continue;
- }
- break;
+ this = next;
}
}
tflags = htmltags[tag].flags;
+ /* Flow content is not allowed in phrasing context. */
+
+ if ((tflags & HTML_INPHRASE) == 0) {
+ for (t = h->tag; t != NULL; t = t->next) {
+ if (t->closed)
+ continue;
+ assert((htmltags[t->tag].flags & HTML_TOPHRASE) == 0);
+ break;
+ }
+
+ /*
+ * Always wrap phrasing elements in a paragraph
+ * unless already contained in some flow container;
+ * never put them directly into a section.
+ */
+
+ } else if (tflags & HTML_TOPHRASE && h->tag->tag == TAG_SECTION)
+ print_otag(h, TAG_P, "c", "Pp");
+
/* Push this tag onto the stack of open scopes. */
if ((tflags & HTML_NOSTACK) == 0) {
/* Accommodate for "well-formed" singleton escaping. */
- if (HTML_AUTOCLOSE & htmltags[tag].flags)
+ if (htmltags[tag].flags & HTML_NOSTACK)
print_byte(h, '/');
print_byte(h, '>');
void
print_text(struct html *h, const char *word)
{
+ /*
+ * Always wrap text in a paragraph unless already contained in
+ * some flow container; never put it directly into a section.
+ */
+
+ if (h->tag->tag == TAG_SECTION)
+ print_otag(h, TAG_P, "c", "Pp");
+
+ /* Output whitespace before this text? */
+
if (h->col && (h->flags & HTML_NOSPACE) == 0) {
if ( ! (HTML_KEEP & h->flags)) {
if (HTML_PREKEEP & h->flags)
print_word(h, " ");
}
+ /*
+ * Print the text, optionally surrounded by HTML whitespace,
+ * optionally manually switching fonts before and after.
+ */
+
assert(h->metaf == NULL);
print_metaf(h);
print_indent(h);
{
size_t i;
- if (h->col)
+ if (h->col || h->noindent)
return;
- if (h->noindent == 0) {
- h->col = h->indent * 2;
- for (i = 0; i < h->col; i++)
- putchar(' ');
- }
- h->flags &= ~HTML_NOSPACE;
+ h->col = h->indent * 2;
+ for (i = 0; i < h->col; i++)
+ putchar(' ');
}
/*
git.ckatri.com / mandoc.git / blobdiff